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Global data_breach → Government CRITICAL 7h Global ransomware → Financial Services / Cybersecurity CRITICAL 7h Global vulnerability → Information Technology / Cybersecurity CRITICAL 9h Global malware → Energy and Utilities CRITICAL 10h Global ransomware → Multiple sectors CRITICAL 10h Global vulnerability → Industrial Control Systems / IoT / Infrastructure CRITICAL 13h Global supply_chain → Information Technology and Critical Infrastructure CRITICAL 13h Global phishing → Multiple sectors HIGH 14h Global insider → Cybersecurity Services CRITICAL 14h Global ransomware → Multiple sectors (U.S. companies) CRITICAL 14h Global data_breach → Government CRITICAL 7h Global ransomware → Financial Services / Cybersecurity CRITICAL 7h Global vulnerability → Information Technology / Cybersecurity CRITICAL 9h Global malware → Energy and Utilities CRITICAL 10h Global ransomware → Multiple sectors CRITICAL 10h Global vulnerability → Industrial Control Systems / IoT / Infrastructure CRITICAL 13h Global supply_chain → Information Technology and Critical Infrastructure CRITICAL 13h Global phishing → Multiple sectors HIGH 14h Global insider → Cybersecurity Services CRITICAL 14h Global ransomware → Multiple sectors (U.S. companies) CRITICAL 14h Global data_breach → Government CRITICAL 7h Global ransomware → Financial Services / Cybersecurity CRITICAL 7h Global vulnerability → Information Technology / Cybersecurity CRITICAL 9h Global malware → Energy and Utilities CRITICAL 10h Global ransomware → Multiple sectors CRITICAL 10h Global vulnerability → Industrial Control Systems / IoT / Infrastructure CRITICAL 13h Global supply_chain → Information Technology and Critical Infrastructure CRITICAL 13h Global phishing → Multiple sectors HIGH 14h Global insider → Cybersecurity Services CRITICAL 14h Global ransomware → Multiple sectors (U.S. companies) CRITICAL 14h

Vulnerabilities ›

CVE-2026-33223

Medium

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, the NATS message header `Nats-Request-Info:` is supposed to be a g

CWE-290 — Weakness Type

                    Published: Mar 25, 2026                      ·  Modified: Mar 28, 2026                      ·  Source: NVD                

CVSS v3

6.4

🔗 NVD Official

📄 Description (English)

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, the NATS message header `Nats-Request-Info:` is supposed to be a guarantee of identity by the NATS server, but the stripping of this header from inbound messages was not fully effective. An attacker with valid credentials for any regular client interface could thus spoof their identity to services which rely upon this header. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 2

https://advisories.nats.io/CVE/secnote-2026-09.txt

security-advisories@github.com

Vendor Advisory

https://github.com/nats-io/nats-server/security/advisories/GHSA-pwx7-fx9r-hr4h

security-advisories@github.com

Vendor Advisory

📦 Affected Products / CPE 2 entries

linuxfoundation:nats-server

linuxfoundation:nats-server

📊 CVSS Score

6.4

/ 10.0 — Medium

📊 CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack VectorN — None / Network

Attack ComplexityL — Low / Local

Privileges RequiredL — Low / Local

User InteractionN — None / Network

ScopeC — Changed

ConfidentialityL — Low / Local

IntegrityL — Low / Local

AvailabilityN — None / Network

📋 Quick Facts

Severity Medium

CVSS Score6.4

CWECWE-290

Exploit No

Patch ✗ No

Published 2026-03-25

Source Feed nvd

🏷️ Tags

CWE-290

🏢 Vendor Advisories

🔗 https://advisories.nats.io/CVE/secnote-2026-09.txt 🔗 https://github.com/nats-io/nats-server/security/advi...

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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